Real-time pitch shift, -12 to +12 semitones
Change the key without touching the tempo. Match any song to your voice in seconds.
ToneBrowser is a browser with a built-in pitch engine. Open any YouTube or music site and move the key ±12 semitones in real time without changing speed — or remove the vocal for an instant karaoke track.
iOS 16+ · Android · Free
For vocal practice, busking, instrument copying, and language learning — a browser for anyone who plays with sound.
No extra apps. Pitch, speed, vocal remover, A-B loop and a 6-band EQ — right on top of YouTube.
Change the key without touching the tempo. Match any song to your voice in seconds.
Slow down to copy a solo, speed up to drill rhythms. Pitch stays locked.
-5 / +5 semitones with a single tap — flip a male song to a female key or vice versa.
Pull the vocals out of the mix and sing along without hunting for an MR.
Drill the hardest two bars of a song until they stick. Two taps to set, infinite repeat.
Bass, Vocal, Pop, Rock, Classical presets plus custom sliders — tune for your gear.
Keep a floating mini-player while chords and lyrics live in another app. (Android)
Lyrics for the currently playing track appear automatically.
Once you try it, you understand why the browser becomes an instrument.
Drop a high female song by five semitones, or lift a low male track by three. Keep the feel; match your voice.
Shift ±1–2 semitones on the day based on how your throat feels. Build backing tracks in seconds.
Play piano or guitar solos at 0.5x without pitch drift. Loop until your hands catch up.
Make any song a karaoke track for home parties, streams, and studio warm-ups.
Slow news and interviews to 0.75x, then push to 1.25x. Listening comprehension climbs fast.
Try a key/BPM pairing before you commit — right inside the browser.
ToneBrowser ships with a pitch engine inside the browser itself. Open a YouTube URL and adjust pitch and speed in real time — no download, no conversion.
Default players resample audio, so speed and pitch move together. ToneBrowser uses a time/pitch separation algorithm, so you can move them independently.
It works best on stereo mixes where the vocal sits in the center channel. Mono tracks and live recordings with off-center vocals will see weaker results.
Yes — common workflow is to set the key in rehearsal, remove vocals for a backing track, then run it into a small speaker during the set. A-B loop also helps drill medleys.
Core features are free. Ad-removal and some advanced tools are available as in-app purchases, visible inside the app.
Download ToneBrowser for free — change the key in 30 seconds.